72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
//===-- MIUtilTermios.cpp ---------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//++
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// File: MIUtilTermios.cpp
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//
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// Overview: Terminal setting termios functions.
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//
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// Environment: Compilers: Visual C++ 12.
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// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
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// Libraries: See MIReadmetxt.
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//
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// Copyright: None.
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//--
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// Third party headers:
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#include <stdlib.h>
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// In-house headers:
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#include "MIUtilTermios.h"
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#include "Platform.h"
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namespace MIUtilTermios
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{
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// Instantiations:
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static bool g_bOldStdinTermiosIsValid = false; // True = yes valid, false = no valid
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static struct termios g_sOldStdinTermios;
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//++ ------------------------------------------------------------------------------------
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// Details: Reset the terminal settings. This function is added as an ::atexit handler
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// to make sure we clean up. See StdinTerminosSet().
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// Type: Global function.
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// Args: None.
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// Return: None.
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// Throws: None.
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//--
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void
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StdinTermiosReset(void)
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{
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if (g_bOldStdinTermiosIsValid)
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{
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g_bOldStdinTermiosIsValid = false;
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::tcsetattr(STDIN_FILENO, TCSANOW, &g_sOldStdinTermios);
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}
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}
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//++ ------------------------------------------------------------------------------------
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// Details: Set the terminal settings function. StdinTermiosReset() is called when to
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// reset to this to before and application exit.
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// Type: Global function.
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// Args: None.
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// Return: None.
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// Throws: None.
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//--
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void
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StdinTermiosSet(void)
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{
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if (::tcgetattr(STDIN_FILENO, &g_sOldStdinTermios) == 0)
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{
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g_bOldStdinTermiosIsValid = true;
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::atexit(StdinTermiosReset);
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}
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}
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} // namespace MIUtilTermios
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